Hello,
To understand what's gone wrong here, we'll need to increase the
verbosity of the logging from the MDS service and then trying starting
it again.
1. Stop the MDS service (on ubuntu this would be "stop ceph-mds-all")
2. Move your old log file away so that we will have a fresh one
mv /var/log/ceph/ceph-mds.mon01.log /var/log/ceph/ceph-mds.mon01.log.old
3. Start the mds service manually (so that it just tries once instead
of flapping):
ceph-mds -i mon01 -f --debug-mds=20 --debug-journaler=10
The resulting log file may be quite big so you may want to gzip it
before sending it to the list.
In addition to the MDS log, please attach your cluster log
(/var/log/ceph/ceph.log).
Thanks,
John
On Mon, Mar 17, 2014 at 7:02 AM, Wong Ming Tat <mt.wong@xxxxxxxx> wrote:
> Hi,
>
>
>
> I receive the MDS replaying journal error as below.
>
> Hope anyone can give some information to solve this problem.
>
>
>
> # ceph health detail
>
> HEALTH_WARN mds cluster is degraded
>
> mds cluster is degraded
>
> mds.mon01 at x.x.x.x:6800/26426 rank 0 is replaying journal
>
>
>
> # ceph -s
>
> cluster xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>
> health HEALTH_WARN mds cluster is degraded
>
> monmap e1: 3 mons at
> {mon01=x.x.x.x:6789/0,mon02=x.x.x.y:6789/0,mon03=x.x.x.z:6789/0}, election
> epoch 1210, quorum 0,1,2 mon01,mon02,mon03
>
> mdsmap e17020: 1/1/1 up {0=mon01=up:replay}, 2 up:standby
>
> osdmap e20195: 24 osds: 24 up, 24 in
>
> pgmap v1424671: 3300 pgs, 6 pools, 793 GB data, 3284 kobjects
>
> 1611 GB used, 87636 GB / 89248 GB avail
>
> 3300 active+clean
>
> client io 2750 kB/s rd, 0 op/s
>
>
>
> # cat /var/log/ceph/ceph-mds.mon01.log
>
> 2014-03-16 18:40:41.894404 7f0f2875c700 0 mds.0.server
> handle_client_file_setlock: start: 0, length: 0, client: 324186, pid: 30684,
> pid_ns: 18446612141968944256, type: 4
>
>
>
> 2014-03-16 18:49:09.993985 7f0f24645700 0 -- x.x.x.x:6801/3739 >>
> y.y.y.y:0/1662262473 pipe(0x728d2780 sd=26 :6801 s=0 pgs=0 cs=0 l=0
> c=0x100adc6e0).accept peer addr is really y.y.y.y:0/1662262473 (socket is
> y.y.y.y:33592/0)
>
> 2014-03-16 18:49:10.000197 7f0f24645700 0 -- x.x.x.x:6801/3739 >>
> y.y.y.y:0/1662262473 pipe(0x728d2780 sd=26 :6801 s=0 pgs=0 cs=0 l=0
> c=0x100adc6e0).accept connect_seq 0 vs existing 1 state standby
>
> 2014-03-16 18:49:10.000239 7f0f24645700 0 -- x.x.x.x:6801/3739 >>
> y.y.y.y:0/1662262473 pipe(0x728d2780 sd=26 :6801 s=0 pgs=0 cs=0 l=0
> c=0x100adc6e0).accept peer reset, then tried to connect to us, replacing
>
> 2014-03-16 18:49:10.550726 7f4c34671780 0 ceph version 0.72.2
> (a913ded2ff138aefb8cb84d347d72164099cfd60), process ceph-mds, pid 13282
>
> 2014-03-16 18:49:10.826713 7f4c2f6f8700 1 mds.-1.0 handle_mds_map standby
>
> 2014-03-16 18:49:10.984992 7f4c2f6f8700 1 mds.0.14 handle_mds_map i am now
> mds.0.14
>
> 2014-03-16 18:49:10.985010 7f4c2f6f8700 1 mds.0.14 handle_mds_map state
> change up:standby --> up:replay
>
> 2014-03-16 18:49:10.985017 7f4c2f6f8700 1 mds.0.14 replay_start
>
> 2014-03-16 18:49:10.985024 7f4c2f6f8700 1 mds.0.14 recovery set is
>
> 2014-03-16 18:49:10.985027 7f4c2f6f8700 1 mds.0.14 need osdmap epoch 3446,
> have 3445
>
> 2014-03-16 18:49:10.985030 7f4c2f6f8700 1 mds.0.14 waiting for osdmap 3446
> (which blacklists prior instance)
>
> 2014-03-16 18:49:16.945500 7f4c2f6f8700 0 mds.0.cache creating system inode
> with ino:100
>
> 2014-03-16 18:49:16.945747 7f4c2f6f8700 0 mds.0.cache creating system inode
> with ino:1
>
> 2014-03-16 18:49:17.358681 7f4c2b5e1700 -1 mds/journal.cc: In function 'void
> EMetaBlob::replay(MDS*, LogSegment*, MDSlaveUpdate*)' thread 7f4c2b5e1700
> time 2014-03-16 18:49:17.356336
>
> mds/journal.cc: 1316: FAILED assert(i == used_preallocated_ino)
>
>
>
> ceph version 0.72.2 (a913ded2ff138aefb8cb84d347d72164099cfd60)
>
> 1: (EMetaBlob::replay(MDS*, LogSegment*, MDSlaveUpdate*)+0x7587) [0x5af5e7]
>
> 2: (EUpdate::replay(MDS*)+0x3a) [0x5b67ea]
>
> 3: (MDLog::_replay_thread()+0x678) [0x79dbb8]
>
> 4: (MDLog::ReplayThread::entry()+0xd) [0x58bded]
>
> 5: (()+0x7e9a) [0x7f4c33a96e9a]
>
> 6: (clone()+0x6d) [0x7f4c3298b3fd]
>
>
>
> Regards,
>
> Wong Ming Tat
>
>
>
>
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